I carry a CZ compact clone (Sarsilmaz Hancer 2000) but can hide a full size Witness as well. I used a Don Hume IWB for Taurus PT111 but got sick of it moving around so built my own Kydex/Leather IWB. Took a couple of versions to get it right but am very happy with it now. It works for both full size and compact CZ clones with a rounded trigger guard. I am only 5'7" or so but am a bit on the heavy side which helps me hide it.
The way I hear a lot of people talk, I often wondered if I was the only one that carried a full size conceal carry gun, M&P40. I just couldn't think about having to defend my self with such a small gun as a LCP 380. The caliber doesn't bother me, it just that I train with a full size, I compete with a full size, and when I have a hold of it, I know I have a hold of it, unlike a small compact.